src/com/android/car/settings/wifi/NetworkPasswordPreferenceController.java

/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.car.settings.wifi;

import android.car.drivingstate.CarUxRestrictions;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.text.TextUtils;
import android.widget.Toast;

import androidx.localbroadcastmanager.content.LocalBroadcastManager;

import com.android.car.settings.R;
import com.android.car.settings.common.FragmentController;
import com.android.car.settings.common.Logger;
import com.android.car.settings.common.PasswordEditTextPreference;
import com.android.car.settings.common.PreferenceController;
import com.android.settingslib.wifi.AccessPoint;

/** Business logic relating to the security type and associated password. */
public class NetworkPasswordPreferenceController extends
        PreferenceController<PasswordEditTextPreference> {

    private static final Logger LOG = new Logger(NetworkPasswordPreferenceController.class);

    private final BroadcastReceiver mNameChangeReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            mNetworkName = intent.getStringExtra(NetworkNamePreferenceController.KEY_NETWORK_NAME);
            refreshUi();
        }
    };

    private final BroadcastReceiver mSecurityChangeReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            mSecurityType = intent.getIntExtra(
                    NetworkSecurityPreferenceController.KEY_SECURITY_TYPE,
                    AccessPoint.SECURITY_NONE);
            refreshUi();
        }
    };

    private String mNetworkName;
    private int mSecurityType = AccessPoint.SECURITY_NONE;

    public NetworkPasswordPreferenceController(Context context, String preferenceKey,
            FragmentController fragmentController, CarUxRestrictions uxRestrictions) {
        super(context, preferenceKey, fragmentController, uxRestrictions);
    }

    @Override
    protected Class<PasswordEditTextPreference> getPreferenceType() {
        return PasswordEditTextPreference.class;
    }

    @Override
    protected void onStartInternal() {
        LocalBroadcastManager.getInstance(getContext()).registerReceiver(mNameChangeReceiver,
                new IntentFilter(NetworkNamePreferenceController.ACTION_NAME_CHANGE));
        LocalBroadcastManager.getInstance(getContext()).registerReceiver(mSecurityChangeReceiver,
                new IntentFilter(NetworkSecurityPreferenceController.ACTION_SECURITY_CHANGE));
    }

    @Override
    protected void onStopInternal() {
        LocalBroadcastManager.getInstance(getContext()).unregisterReceiver(mNameChangeReceiver);
        LocalBroadcastManager.getInstance(getContext()).unregisterReceiver(mSecurityChangeReceiver);
    }

    @Override
    protected void updateState(PasswordEditTextPreference preference) {
        if (TextUtils.isEmpty(mNetworkName)) {
            getPreference().setDialogTitle(R.string.wifi_password);
        } else {
            getPreference().setDialogTitle(mNetworkName);
        }
        preference.setVisible(mSecurityType != AccessPoint.SECURITY_NONE);
    }

    @Override
    protected boolean handlePreferenceChanged(PasswordEditTextPreference preference,
            Object newValue) {
        if (TextUtils.isEmpty(mNetworkName)) {
            Toast.makeText(getContext(), R.string.wifi_no_network_name, Toast.LENGTH_SHORT).show();
            return true;
        }

        String password = newValue.toString();
        int netId = WifiUtil.connectToAccessPoint(getContext(), mNetworkName, mSecurityType,
                password, /* hidden= */ true);

        LOG.d("connected to netId: " + netId);
        if (netId != WifiUtil.INVALID_NET_ID) {
            getFragmentController().goBack();
        }

        return true;
    }
}